When I was promoted, the Training Captain just shook my hand and said " Congratulations, Captain, stop by Uniform Section and leave your jacket for re-braiding "
I then found that the Cabin Crew had sewn up the sleeves of my jacket, and cannabilised a Tampax pack from the forward toilet to get cotton wool to sew 'scrambled egg' to the peak of my cap. I wore that off the aircraft.
A few days later Rosters rang and asked to speak to Captain ExSp33db1rd - my wife said " I think you have the wrong number " and put the 'phone down !